Microbiological test tray



FIG. 1 is a top plan view of a microbiological test tray showing my new design;

FIG. 2 is a front elevational view of the tray of FIG. 1;

FIG. 3 is a rear side view of the tray of FIG. 1;

FIG. 4 is a right side view of the tray of FIG. 1;

FIG. 5 is a left side view of the tray of FIG. 1;

FIG. 6 is a bottom plan view of the tray of FIG. 1; and

FIG. 7 is a sectional view taken generally along line 7--7 of FIG. 6. 

The ornamental design for a microbiological test tray, substantially as shown and described. 